Lubricant-expelling device



. sepa. 2s, mg. mamas H. J. MURPHY l LUBRICANT ExPELnINo rmviw FiledFeb. 11,l 192.51'

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1,615,408 FFH HOWARD J'. MURPHY, OF READING, MASSACHUSETTS, ASSIGNOB,`DY MESNE ASSIGN- MENTS, TO THE IBASSICK MANUFACTURING COMPANY, 0FCHICAGO, ILLINOIS, A

CORPORATION OF DELAWARE.

LUBRICANT-EXPELLING DEVICE.

This invention aims to provide an improved lubricant-expelling device. lIn the drawings, which illustrate a preferred `form of my invention l `5Figure 1 is a side elevation of a lubricant- .expelling gun shownsecured to a cooperating lubricant-receiving nipple;

Fig. 2 is'a longitudinal section through the nozzle and a portion of thebarrel, being partly in elevation; A

F'ig. 3v is a section on the line 3 3 of Fig.1, being partly inelevation and showing the valve open to permit passage of lubricant tothe lubricant-receiving nipple; y Fig. 4 is a section similar to Fig.3,v but showing the relation of the nozzle to the lubricant-receivingnipple prior to opening of the valve;

Fig. 5 is a somewhat enlarged section on the line 5-5 of Fig. 1; and YFig. 6 includes a rear, side and front elevation of a preferred form oflubricant-receiving nipple.

The form of my inventiomas illustrated and more fully hereinafterdescribed, is decidedly advantageous over other known constructions oflubricant-expelling devices wherein the nozzle of the device is passedover the head ofthey nipple without anycoupling whatever. When no actualcoupling takes place, the strength of the operator 1s relied upon todischarge lubricant under pressure and maintain a tight seal between thenipple and the lubricant-expelling device. My invention includes aso-called hook-over connection between the deviceand the nipple, whichisvery eiiicient and simple in operation. One of the advantages ofthehook-over connection over the. push connection is that it is possible tohook the nozzle over a nipple which projects at nearly any anglerelative to the part to be lubricated, whereas in other known types ofdevices the nipples must all be so arranged that they will .be in a linewith the axis of the barrel of the device. The cooperation between theangle "of the nozzle and the relation of the lip relative to the torqueexerted upon the handle of the device is also important. Because oftheir cooperation, lubricant may be expelled under great pressurewithout fear of leakage around the sealing washer. Also no great amountof exertion is required topperate the device.

va shoulder or lip Referring to the drawings and to the preferred formof my invention, I have shown the usual barrel 1, rear head 2, intowhich is threaded a plunger kstem 3 carrying the usual plunger 4 (Fig.2) for forcing lubricant from the barrel, and a handle 5. At the frontend of the barrel, I have shown a front head 6 threadedly secured to thebarrel 1 in the usual way. The preferred form of front head is providedwith a boss 7 into which is screwed the end of a nozzle-carrying part 8.The nozzle includes a valve-carrying part 9 thread ed into the part 8 at'approximately a ninety degrees angle relative to the axis of the barrell and a coupling part or sleeve 10 threadedly secured to thevalve-carrying part 9. The purposes of the angular relation of thepartsl will be more fully hereinafter described.

The valve-carrying part 9 presents a seat 11 for a closure valve l2normally urged against its seat by a spring 13 seated at one end in thenozzle-carrying part l8. The coupling sleeve 10 hasan opening or recess14 at the front end thereof, which is intersected by 15, the purposes ofwhich will be more fully hereinafter described.

Between the valve-carrying part 9 and the sloping inner face of thecoupling sleeve 10, I have provided a flexible sealing washer 16, heldin place between the tapered end 17 of the valve-carrying part and thesloping inner face of the coupling sleeve as illustrated 'in Fig. 2. Theclosure valveis preferably provided with a forwardly extendingprojecting part 18 which normally passes partly through the sealingwasher, as illustrated in Figs. 2 and 4.

The lubricant-receiving nipple, as illustrated in Figs. 3, 4 and 6,includes a lat'sided wrench-receiving central portion 19, a threadedportion 20 at one side thereof for secur-ing the nipple to its supportand at the headof the nipple, as best illustrated in Fig. 4. Then, byturning the handle in a clockwise direction, the torque roduced ltherebywill tip the nozzle about t e pivot provided between thelip and shoulder23 until it is aligned with the axis of the nipple, asbest shown in Fig.3. This action can take place when turning the handle because of theangular relation of the nozzle to the barrel of the device and becausethelip is hooked under that side of the nipple away from the v bylubricant which rushes past the valve as soon as opened. Furtherrotation of the handle 5 in a clockwise direction forces the lubricantfrom the barrel through a passage 24 in the nozzle-carrying part 8,through a assage 25, connecting the passage 24withthec amber 26 which isprovided back of the flexible sealing Washer 16. The lubricant thenpasses from the chamber 26 through an aperture 27 in the sealing washer16, through which the end 18 of the closure valve projects, through aslot 28 cut inv the end of the projecting part 18 to the passage 29 inthe lubricantreceiving nipple. j

If the nozzle were placed in line with the axis of the gun, there wouldbe a tendency of the Whole nozzle to rotate about thelubricant-receiving ni'pple and there would not be any effectivepressure caused by the torque ofthe gun to 'help greatly in producing aneicient seal. Therefore, the angle of the nozzle in relation to thebarrel of the device is important and the relation of the lip to thedirection of rotation of the handle is important in producing anefficient seal between the nipple and the nozzle.

The lubricant expelled may, if desired, be under relatively greatpressure, but no substantial leakage is possible because the pressure onthe sealing washer holds the latter inv such close cont-act with thevrounded head of the nipple as to preclude leakage. The greater thetorque on the handle 5, the greater will be the pressure exerted betweenthe nozzle of the device and the nipple.

Disengagement of the device from the nipple is effected by a slightcounter-'clockwise pressure exerted upon the handle which overbalancesthe nozzle with relation to the nipple, thereby permitting the valve toclose and the nozzle then tips 0E of the head of the ni ple and the lipbecomes disengaged from t e shoulder.

If desirable, the operator may use both hands in securing the device tothe nipple. First taking the device by the barrel with one hand andhooking it over and aligning the nozzle with the axis ofthe nipple bytorque on the barrel, with the other hand the operator may turn thehandle to expel. lubricant from the barrel. However, the first describedmeans of operation is simpler and preferable.

expelling means including a handle whereby.

lubricant may be forced from said gun to said lubricant-receiving part,said coupling means adapted to tip about said shoulder when torque isapplied to said handle thereby to open said valve and permit passage oflubricant from said gun to said lubricantreceiving part. e

2. Lubricating apparatus comprising, in combination, alubricant-receiving nipple presenting a shoulder thereon, alubricant-expelling gun including a barrel, a handle, a piston operableby rotation of said handle to force lubricant from saidl barrel, and anozzle presenting a lip adapted to be hooked over said shoulder, theaxis of said nozzle at an angle relative to the axis of said barrel,said angle being such that torque on said handle causes said lip to hookunder said shoulder While opposing any axial rotation of said nozzlerelative to said nipple. i

3. A lubricant-expelling device comprising, in combination, a barrel,means for expelling lubricant from said barrel, a handle for operatingsaid expelling means, a discharge conduit vfixed to said barrel, anozzlebeyond said conduit, an aperture to permit passage of said nozzle overthe head of a lubricant-receiving nipple and a lip for engagement withsaid nipple, said lip located at that side of said aperture away fromthe direction of rotation of said handle when said lubricant is beingforced from said barrel, said nozzle located at an angle relative tosaid barrel to prevent rotation of said lip relative to said nipplethereby permittinga tipping action of said nozzle to eEect a tight sealbetween said nozzle and said nipple.

4. A lubricant-expelling device for cooperation with alubricant-receiving nipple presenting a head and a shoulder back of saidhead, said device including a nozzle presentameter of the head of thenipple, thereby necessitating tipping of the nozzle over the nipple tomake a connection therewith.

5. A lubricating apparatus comprising in combination, alubricant-receiving partA having a shoulder, a nozzle forengagement withsaid lubricant-receiving part., said nozzle including a sealing washer,a closure valve .having a stem extending into adjacency to said sealingwasher, and a lip located beyond and at one side of said stem, said lipada ted to engage behind one side of said shou der of said lubricantreceiving part whereby a tipping action of said nozzle relative to saidlubricant-receiving part about said lip as a fulcrum will cause the endof said lubricant-receiving part to engage said stem to open said valveand whereby said washer will be pressed by the lubricant releasedthrough said valve against the head of the lubricantreceiving part toprovide a tight` seal between said nozzle and said lubricantreceivingpart.

6. Lubricating apparatus comprisino', in combination, alubricant-receiving part aving a shoulder, a nozzle for engagement withsaid lubricant-receiving part, said nozzle including a sealing washer, aspring-pressed closure valve having a stem extending into adjacency tosaid sealing washer, and-a lip located beyond'and at one side of saidstem, said lip adapted to engage behind one side of said shoulder ofsaid lubricant-receiving part whereby a tipping action of said nozzlerelative to said lubricant-receiving part about said lip as a fulcrumwill cause the end-of said lubricant-receiving part to engage said stemto open said valve and where-v by said washer will be pressed by thelubricant released through said valve against the headv of thelubricant-receiving part to `provide a tight seal between said nozzleand said lubricant-receiving part.

7. A lubricant expelling device for cooperation with a lubricantreceiving nipple having a head and a shoulder back, of said head, saiddevice including a nozzle presenting a closure valve, a lip intersectingone side of a nipple receiving opening in said nozzle for engagementback of said shoulder on said nipple at one side only to permit thenozzle to tip into and out of coupling engagement with the nipple, asealing washer for engagement with the head of said nipple, said closurevalve actuated by the head of said nipp-le to permit the passage oflubricant from said nozzle to said lubricant receiving nipple, andlubricant'expelling means for holding said. nozzle and nipple in coupledrelation.

8. A lubricant expelling device for cooperation with a lubricantreceiving nipple presenting a head and a shoulder back of said head,said device including a nozzle presenting a cou ling and a partpresenting a valve seat, a 1u ricant pressed sealing washer between saidcoupling part and valve seat part head of the nipple, and means carriedby said coupling partforv engagement back of lcant pressed sealing diseadapted to receive and conform to the rounded end of said nipple, saidsealing disc having an edge firmly clamped in .said nozzle and avcentral part havin an aperture adapted to register with the in etopening in said nipple, a barrel including means for forcing lubricantfrom said barrel to said nipple, said nozzle and said barrel beingrigidly connected so that movement of said barrel in one directioneffects a sealed connection between said nipple and nozzle and movementin a second direction eects disconnection thereof and means associatedwith said barrel for discharging lubricant therefrom at high pressure.

In testimony whereof, I have signed my name to this specification.

HOWARD J.

.for making a lubricant tight seal against the

